1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
|
/****************************************************************************
**
** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtDeclarative module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qdeclarativeextensionplugin.h"
QT_BEGIN_NAMESPACE
/*!
\since 4.7
\class QDeclarativeExtensionPlugin
\brief The QDeclarativeExtensionPlugin class provides an abstract base for custom QML extension plugins.
\ingroup plugins
QDeclarativeExtensionPlugin is a plugin interface that makes it
possible to offer extensions that can be loaded dynamically into
applications using the QDeclarativeEngine class.
Writing a QML extension plugin is achieved by subclassing this
base class, reimplementing the pure virtual registerTypes()
function, and exporting the class using the Q_EXPORT_PLUGIN2()
macro.
QML extension plugins can be used to provide either application-specific or
library-like plugins. Library plugins should limit themselves to registering types,
as any manipulation of the engine's root context may cause conflicts
or other issues in the library user's code.
See \l {Tutorial: Writing QML extensions with C++} for details on creating
QML extensions, including how to build a plugin with with QDeclarativeExtensionPlugin.
For a simple overview, see the \l{declarative/plugins}{plugins} example.
Also see \l {How to Create Qt Plugins} for general Qt plugin documentation.
\sa QDeclarativeEngine::importPlugin()
*/
/*!
\fn void QDeclarativeExtensionPlugin::registerTypes(const char *uri)
Registers the QML types in the given \a uri. Subclasses should implement
this to call qmlRegisterType() for all types which are provided by the extension
plugin.
The \a uri is an identifier for the plugin generated by the QML engine
based on the name and path of the extension's plugin library.
*/
/*!
Constructs a QML extension plugin with the given \a parent.
Note that this constructor is invoked automatically by the
Q_EXPORT_PLUGIN2() macro, so there is no need for calling it
explicitly.
*/
QDeclarativeExtensionPlugin::QDeclarativeExtensionPlugin(QObject *parent)
: QObject(parent)
{
}
/*!
Destroys the plugin.
*/
QDeclarativeExtensionPlugin::~QDeclarativeExtensionPlugin()
{
}
/*!
\fn void QDeclarativeExtensionPlugin::initializeEngine(QDeclarativeEngine *engine, const char *uri)
Initializes the extension from the \a uri using the \a engine. Here an application
plugin might, for example, expose some data or objects to QML,
as context properties on the engine's root context.
*/
void QDeclarativeExtensionPlugin::initializeEngine(QDeclarativeEngine *engine, const char *uri)
{
Q_UNUSED(engine);
Q_UNUSED(uri);
}
QT_END_NAMESPACE
|
